This will be a longer post than it should be - I can't help myself - my father was a story teller too. I'm sorry.

So I bought the truck about a year ago and I love it. 2006, 6.0 with all the good things done to the engine - absolutely no concerns about the drivetrain so far. Just one annoying quirk related to the remote start.

The truck has what I have since learned is a Ford aftermarket 4-button remote start system. Its taken a year to get to where I feel I can accurately describe exactly what it does. I'd like someone to tell me why it does this and how to fix it.

Periodically, for no immediately apparent reason, we would get in the truck and turn the key and nothing would happen. I say "nothing" but actually the dash lights up, the glow plugs cycle, I hear the normal underhood noises but when I turn the key to engage the starter nothing happens - no click, nothing. Whenever this happened we initially had no understanding of what we would eventually do to solve the problem so it was annoying in the extreme. The truck ALWAYS starts if I use the remote start button - the problem only appears, very occasionally, when I try to start it with the key. So we were never stranded - just mildly annoyed on maybe 6 or 8 occasions. No big deal. Over the course of the year I have learned how to repeat the problem reliably and its very simple.

If I use the remote unlock then the truck will start every time using the key. If I unlock the truck with the key then it will never start using the key. Since we rarely lock the truck and almost always unlock it with the remote, the problem rarely appeared. Today I replaced the alternator and discovered that if I disconnect the batteries completely then that will also cause the problem. So just to be clear, after I reconnected the batteries when I turned the key I got a "no-starter situation" but as soon as I cycled the locks with the remote the truck started normally on the key. I have also learned that if I create the problem (unlock the door with the key) and then attempt to start the truck, I can subsequently start it using the big yellow wire on the passenger fenderwell, for whatever that is worth.

So now you know everything that I know. Will somebody please tell me what the problem is and how to solve it.

Not sure on factory systems. But the relay will have ignition input, ground and starter car side and key side and ground while armed or locked and security armed. Your starter wires are 87 and 87a . the relay is connecting the starter wires together when the ignition is powered as long as the security system is unlocked. So if u just connect the cut starter wire together ull be good to go

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